Digital & Binary clock with thermometer & hygrometer
https://www.electronics-lab.com/project/digital-binary-clock-with-thermometer-hygrometer/
Here we have a clock. It’s not “another clock”. It has digital and binary output. It also has a thermometer and a hygrometer. It’s not “another thermo-hygrometer”. It display’s absolutely humidity (gr/m3) also. Schematic MCU I build it around Microchip PIC16F917, with internal Oscillator at 4MHz. I also build a serial port programmer, so I […]
MultiKey – One Wire Keypad
https://www.electronics-lab.com/project/multikey-one-wire-keypad/
Introduction This is a simple and easy to make serial keypad. The microcontroller will output the number of the push button pressed. This project can be used for many different purposes. Probably the most used application would be to interface to any electronic project that requires a keypad. There are several ready made keypads on […]
MCS08DZ60 Evaluation Board
https://www.electronics-lab.com/project/mcs08dz60-evaluation-board/
Introduction The board shown in this article is build around a recent microcontroller from Freescale. It has some interesting features presented below, and is initially developed to learn with the CAN bus. It is an easy to build board particularly adapted for beginners. The Microcontoller The microcontroller used is the 68HCS08DZ60, from Freescale, and coming […]
Microcontroller Clapper Switch
https://www.electronics-lab.com/project/microcontroller-clapper-switch/
Introduction I always thought the clapper so cool. For those who are lazy like me, turn on or off the bedroom light without getting out of bed, simple clap your hands is amazing. Thinking about it I projected one for me. Several projects of clappers can be found on the Internet, and most of them […]
Arduino Solar Day Night Controller
https://www.electronics-lab.com/project/arduino-solar-day-night-controller/
Introduction This is an Arduino controlled light sensing switching unit. Its main use is to control solar lights to turn on when it is dark outside, but it can work in many more applications. This guide will walk you through every aspect of the building process. Prior knowledge of the Arduino unit is not necessary […]
LED UV exposure box
https://www.electronics-lab.com/project/led-uv-exposure-box/
Introduction I have been using the toner transfer method for about 9 years with great results. Occasionally I would need a board with finer traces and I would use UV method. My exposure setup allowed only a single sided board to be made and it was composed of a 30cm UV tube, some holders, […]
OSCCAL Value Finder
https://www.electronics-lab.com/project/osccal-value-finder/
Introduction When working with microcontrollers that require a factory calibrated osccal value stored in memory, its very normal that once in a while this setting could be lost during an upload of a new program or when accidentally erasing the device. Im no exception and erased many times this value by mistake in several devices. […]
USB Low Pin Kit
https://www.electronics-lab.com/project/usb-low-pin-kit/
Introduction USB is very common interface today. If you look around, many of devices today comes with a USB port. Computers, printers, routers, usb keys, etc. All this devices have a USB controller inside. These devices can be divided in two groups: USB Host (like a computer, routers, modern LCD TV’s); USB Device (like flash […]
3-Wire Serial LCD using a Shift Register
https://www.electronics-lab.com/project/3-wire-serial-lcd-using-a-shift-register/
Introduction HD44780 based character LCDs require at least 6 I/O lines from microcontroller to display data. Therefore, they are not suitable for low-pin microcontrollers like PIC12F series microchips. In this project, I am going to show how to drive an HD44780 based LCD display with only 3 pins of a microcontroller. I am going to […]
Learning Board for Microchip PIC12F683 microcontroller
https://www.electronics-lab.com/project/learning-board-for-pic12f683-microchip/
Introduction Electronics is my hobby. When I was in college I had some experience with microcontrollers; I did few projects with Atmel’s AT89C51. Recently, I have grown interest on PIC microcontrollers, and I thought I should start with 8-pin microchips. I picked PIC12F683 microchip. This microcontroller fascinated me a lot because I wanted to see […]